@font-face{font-family:DM;src:url(dm-sans-latin-wght-normal.woff2) format('woff2');font-weight:100 1000;font-display:swap}@font-face{font-family:Newsreader;src:url(newsreader-latin-wght-normal.woff2) format('woff2');font-weight:200 800;font-display:swap}@font-face{font-family:Plex;src:url(ibm-plex-mono-latin-400-normal.woff2) format('woff2');font-weight:400;font-display:swap}
:root{--paper:#f5f3ec;--ink:#242922;--muted:#62675e;--line:#cdcfc4;--accent:#ad3e1a;--soft:#eaece2;--panel:#e4e7dc;--inverse:#252b24;--inverse-text:#f2f2e9;color-scheme:light}html[data-theme=dark]{--paper:#1b211d;--ink:#f0f0e6;--muted:#b2b9ad;--line:#424a41;--accent:#f18a60;--soft:#252d27;--panel:#303a30;--inverse:#111812;--inverse-text:#f2f2e9;color-scheme:dark}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;background:var(--paper);color:var(--ink);font-family:DM,Arial,sans-serif;font-size:17px;line-height:1.55}button,a,summary{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}a:hover{text-decoration:underline;text-underline-offset:5px}button{font:inherit;color:inherit;cursor:pointer}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:5px}button{border:0;background:none;padding:0}h1,h2,h3,p{margin:0}em{font-family:Newsreader,Georgia,serif;font-weight:450}h1,h2,h3{line-height:1.04;letter-spacing:-.045em;font-weight:600}.wrap{width:min(1320px,calc(100% - 96px));margin-inline:auto}.mono,.eyebrow,.technical,.sample-label,.tile-no,.tile-caption,.concept,.topline,.filters button{font-family:Plex,monospace;font-weight:400;font-size:11px;letter-spacing:.025em}.accent{color:var(--accent)}.skip{position:fixed;top:-90px;left:20px;padding:10px 20px;z-index:30;background:var(--paper)}.skip:focus{top:10px}.concept{padding:9px 32px;display:flex;justify-content:space-between;gap:20px;background:var(--ink);color:var(--paper);font-size:10px}.concept>span:first-child{text-transform:uppercase;white-space:nowrap}.concept a{white-space:nowrap}.topline{display:flex;justify-content:space-between;align-items:center;margin-top:29px;text-transform:uppercase}.theme-button{display:flex;gap:8px;align-items:center;font-size:12px}.wordmark{display:block;font-weight:650;font-size:clamp(100px,16.5vw,230px);letter-spacing:-.085em;line-height:1.04;margin-left:-.065em;margin-top:13px;width:max-content}.wordmark:hover{text-decoration:none}.wordmark-dot{color:var(--accent)}.navrow{border-block:1px solid var(--ink);padding:16px 0;display:flex;justify-content:space-between;align-items:center;gap:20px}.technical{font-size:10px;letter-spacing:.12em}.navrow nav{display:flex;gap:30px;font-size:13px;font-weight:550}.introduction{display:flex;justify-content:space-between;align-items:center;padding-block:28px 40px;gap:30px}.introduction>p:first-child{font-size:23px;line-height:1.27;font-weight:550;letter-spacing:-.025em}.introduction>p:first-child span{color:var(--muted)}.intro-small{font-size:13px;color:var(--muted);line-height:1.65}.lead{display:grid;grid-template-columns:1fr 1.08fr;gap:56px;padding-bottom:37px}.lead-copy{display:flex;flex-direction:column;padding-top:5px}.eyebrow{text-transform:uppercase;display:flex;gap:22px;font-size:10px;letter-spacing:.065em}.sample-label{color:var(--muted);font-size:10px;margin-top:25px}.lead h1{font-size:clamp(43px,4.55vw,67px);margin-top:14px;line-height:1.03;font-weight:600}.lead h1 em{font-size:1.08em;letter-spacing:-.045em}.dek{max-width:375px;color:var(--muted);font-size:16px;line-height:1.5;margin-top:23px}.text-link{display:inline-flex;align-items:center;gap:32px;align-self:flex-start;margin-top:27px;border-bottom:1px solid var(--accent);padding-bottom:7px;font-size:13px;font-weight:600;color:var(--accent)}.text-link:hover{text-decoration:none;border-bottom-width:2px}.lead-bottom{border-top:1px solid var(--line);margin-top:auto;padding-top:15px;display:flex;justify-content:space-between;color:var(--muted);font-size:10px}.lead-art svg{width:100%;display:block;height:auto}.art-caption{display:flex;justify-content:space-between;gap:15px;margin-top:10px;color:var(--muted);font-size:9px}.launch{border-block:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:20px;padding-block:20px}.launch>span:first-child{color:var(--accent);text-transform:uppercase}.launch p{font-size:17px}.launch>span:last-child{color:var(--muted)}.reporting{padding-top:65px;padding-bottom:72px}.section-head{display:flex;align-items:baseline;justify-content:space-between;gap:20px}.section-head h2{font-size:44px}.section-head p{font-size:12px;color:var(--muted)}.filters{display:flex;gap:7px;align-items:center;flex-wrap:wrap;margin:26px 0 30px}.filters button{padding:9px 16px;border:1px solid var(--line);border-radius:0;font-size:10px}.filters button:hover{border-color:var(--ink)}.filters button.active{background:var(--ink);border-color:var(--ink);color:var(--paper)}.filter-count{margin-left:auto;font-size:10px;color:var(--muted)}.story-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}.story[hidden]{display:none}.tile{height:230px;background:var(--soft);position:relative;display:flex;flex-direction:column;justify-content:space-between;padding:17px 18px;color:var(--ink)}.tile-no{font-size:9px}.tile-caption{font-size:9px;color:var(--muted)}.tile svg{width:100%;height:155px}.diagram-privacy{background:var(--panel)}.permission{display:grid;grid-template-columns:1fr 40px;row-gap:12px;align-items:center;max-width:220px;width:100%;margin:auto;font-family:Plex,monospace;font-size:11px}.permission i{display:block;height:19px;width:34px;border-radius:20px;background:var(--ink);position:relative}.permission i:after{content:'';position:absolute;width:13px;height:13px;top:3px;right:3px;border-radius:50%;background:var(--paper)}.permission i.off{background:transparent;border:1px solid var(--muted)}.permission i.off:after{background:var(--muted);top:2px;left:3px}.story .eyebrow{margin-top:22px;color:var(--accent);font-size:9px}.story h3{font-size:29px;line-height:1.12;letter-spacing:-.035em;margin-top:12px}.story h3 button{text-align:left;font:inherit}.story h3 button:hover{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px}.story>p{font-size:14px;color:var(--muted);margin-top:15px;line-height:1.6}.story-type{display:flex;justify-content:space-between;border-top:1px solid var(--line);padding-top:12px;margin-top:23px;font-size:10px}.story-type span{font-size:17px;color:var(--accent)}.sample-footnote{font-size:11px;color:var(--muted);margin-top:29px}.notebook{background:var(--inverse);color:var(--inverse-text);padding-block:65px}.notebook .accent{color:#f18a60}.notebook-grid{display:grid;grid-template-columns:1fr 1.6fr;gap:90px}.notebook h2{font-size:47px;font-weight:500;margin-block:21px}.notebook-intro>p{font-size:15px;color:#b8c1b4;max-width:260px}.notebook-intro>.mono{display:block;font-size:9px;color:#b8c1b4;margin-top:30px}.notes details{border-top:1px solid #50594d}.notes details:last-child{border-bottom:1px solid #50594d}.notes summary{padding:20px 35px 21px 0;position:relative;cursor:pointer;list-style:none}.notes summary::-webkit-details-marker{display:none}.notes summary>.mono{color:#b8c1b4;font-size:9px;text-transform:uppercase}.notes h3{font-size:23px;letter-spacing:-.02em;margin-top:10px;font-weight:450}.plus{position:absolute;right:0;top:35px;font-size:24px;color:#f18a60}.notes details[open] .plus{transform:rotate(45deg)}.note-body{font-size:14px;line-height:1.7;color:#c5cdbf;max-width:540px;padding-bottom:24px}.note-body .mono{font-size:10px;color:#f18a60;margin-top:16px}.approach{padding-block:75px 45px}.approach-grid{display:grid;grid-template-columns:1fr 1fr;gap:80px;margin-top:24px}.approach h2{font-size:49px;line-height:1.1}.approach-grid p{font-size:16px;color:var(--muted);margin-bottom:16px}.credentials{display:flex;justify-content:space-between;gap:25px;border-top:1px solid var(--line);padding-top:23px;margin-top:43px;font-size:9px;color:var(--muted)}footer{border-top:2px solid var(--ink);padding-block:30px 35px;display:flex;justify-content:space-between;align-items:center;gap:25px}.footer-brand{font-size:48px;font-weight:650;letter-spacing:-.07em}footer p{font-size:12px;color:var(--muted)}footer>div{display:flex;flex-direction:column;text-align:right;gap:10px;font-size:13px}footer .mono{font-size:9px;color:var(--muted)}body.reading{overflow:hidden}dialog{border:1px solid var(--line);padding:0;background:var(--paper);color:var(--ink);width:min(900px,calc(100% - 32px));height:90dvh;max-height:90dvh;max-width:none;overscroll-behavior:contain}dialog::backdrop{background:rgb(0 0 0/.68)}.reader-toolbar{position:sticky;top:0;display:flex;justify-content:space-between;gap:15px;background:var(--paper);padding:17px 25px;border-bottom:1px solid var(--line);z-index:1}.reader-toolbar button{font-size:13px}.reader-toolbar .mono{font-size:10px}.reader-article{max-width:640px;margin:auto;padding:45px 25px 65px}.reader-article h2{font-size:53px;margin-top:20px}.reader-dek{font-size:19px!important;color:var(--muted);font-family:DM!important;line-height:1.45!important;margin-top:22px!important}.reader-byline{border-block:1px solid var(--line);padding:14px 0;margin:25px 0 35px;font-size:10px;color:var(--muted)}.reader-article>p{font:400 22px/1.65 Newsreader,Georgia,serif;margin-block:22px}.reader-article h3{font-size:26px;margin-top:40px;letter-spacing:-.025em}.reader-article blockquote{font:400 32px/1.25 Newsreader,Georgia,serif;margin:35px 0;padding-left:24px;border-left:3px solid var(--accent)}.method-note{padding:22px;background:var(--soft);margin-top:25px}.method-note p{font-size:15px;margin-top:10px}.reader-article>p.mono{font:11px/1.6 Plex,monospace}.reader-article hr{border:0;border-top:1px solid var(--line);margin-top:40px}
@media(min-width:1500px){.lead-art svg{max-height:555px}.lead{grid-template-columns:1fr 1.05fr}.lead-bottom{margin-top:30px}}
@media(max-width:1000px){.wrap{width:calc(100% - 56px)}.lead{gap:28px}.lead h1{font-size:47px}.lead-bottom{margin-top:25px}.notebook-grid{gap:45px}.story-grid{gap:20px}.tile{height:200px}.story h3{font-size:25px}.approach-grid{gap:40px}.approach h2{font-size:40px}.navrow nav{gap:20px}.technical{font-size:9px}.introduction{padding-bottom:28px}}
@media(max-width:720px){.wrap{width:calc(100% - 40px)}.concept{padding:9px 20px;flex-wrap:wrap;gap:3px 15px;font-size:9px}.concept>span:nth-child(2){order:3;width:100%}.concept a{margin-left:auto}.topline{margin-top:21px;font-size:8px}.theme-button{font-size:10px}.wordmark{font-size:clamp(94px,23vw,160px);margin-top:17px;line-height:1.1}.navrow{display:block;padding:12px 0}.technical{display:block;margin-bottom:12px;font-size:8px}.navrow nav{justify-content:space-between;gap:10px;font-size:11px}.introduction{display:block;padding-block:24px}.introduction>p:first-child{font-size:20px}.intro-small{display:none}.lead{display:flex;flex-direction:column;gap:26px}.lead h1{font-size:clamp(43px,10.6vw,65px);margin-top:10px}.lead h1 br:nth-child(2){display:none}.sample-label{margin-top:19px}.dek{font-size:15px;max-width:95%;margin-top:20px}.lead-bottom{display:none}.text-link{margin-top:20px}.lead-art svg{max-height:460px;background:#222722}.launch{flex-wrap:wrap;gap:6px 20px;padding-block:17px}.launch>span:first-child{width:100%;font-size:9px}.launch p{font-size:15px}.launch>span:last-child{font-size:9px}.reporting{padding-block:45px}.section-head h2{font-size:35px}.section-head p{font-size:10px;max-width:100px;text-align:right}.filters{gap:6px;margin:22px 0}.filters button{padding:9px 11px;font-size:9px}.filter-count{width:100%;margin:6px 0 0}.story-grid{grid-template-columns:1fr;gap:32px}.tile{height:230px}.tile svg{height:170px}.story h3{font-size:29px}.story>p{font-size:15px}.story-type{margin-top:16px}.story .eyebrow{margin-top:17px}.notebook{padding-block:42px}.notebook-grid{grid-template-columns:1fr;gap:30px}.notebook h2{font-size:42px}.notebook h2 br{display:none}.notebook-intro>p{max-width:100%}.notebook-intro>.mono{margin-top:17px}.notes h3{font-size:22px}.approach{padding-block:45px 30px}.approach-grid{grid-template-columns:1fr;gap:23px;margin-top:20px}.approach h2{font-size:40px}.credentials{flex-direction:column;gap:10px;margin-top:25px;padding-top:20px}footer{flex-wrap:wrap;align-items:start;padding-block:23px}.footer-brand{font-size:38px}footer p{max-width:160px;font-size:11px}footer>div{width:100%;flex-direction:row;text-align:left;justify-content:space-between;font-size:12px}footer .mono{max-width:120px;text-align:right}.reader-article{padding:30px 23px}.reader-article h2{font-size:38px}.reader-article>p{font-size:20px}.reader-toolbar{padding:14px 17px}.reader-toolbar .mono{font-size:8px}.reader-article blockquote{font-size:28px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
/* Temporary palette study: one set of roles across all three directions. */
:root,html[data-palette="cobalt"]{--paper:#f6f6f2;--ink:#18212e;--muted:#596473;--line:#cbd1da;--accent:#2155c5;--soft:#e9edf3;--panel:#dfe5ee;--inverse:#172233;--inverse-text:#f3f6fc;--night-muted:#bbc7db;--night-line:#4b5c76;--bright:#91b7ff;--art-body:#aebed4;--art-window:#334760;--art-roof:#859dbb}
html[data-palette="amber"]{--paper:#f2f3f4;--ink:#242629;--muted:#5e6268;--line:#c9ccd0;--accent:#875300;--soft:#e7e8ea;--panel:#dadde0;--inverse:#242629;--inverse-text:#f5f3ee;--night-muted:#c9c6bf;--night-line:#605a4e;--bright:#f0bd64;--art-body:#b8b6ae;--art-window:#454541;--art-roof:#939186}
html[data-palette="vermilion"]{--paper:#faf5eb;--ink:#292522;--muted:#6e6259;--line:#d8cec1;--accent:#b33120;--soft:#f0e7dc;--panel:#e7d9cb;--inverse:#302622;--inverse-text:#fff5e9;--night-muted:#d6bfb2;--night-line:#75574d;--bright:#ff9a80;--art-body:#c9b5a3;--art-window:#59463c;--art-roof:#a58a76}
html[data-theme="dark"][data-palette="cobalt"]{--paper:#141c28;--ink:#eef2f9;--muted:#b0bfd3;--line:#3c4c63;--accent:#91b7ff;--soft:#202d40;--panel:#2a3b53;--inverse:#0d1521}
html[data-theme="dark"][data-palette="amber"]{--paper:#1c1e21;--ink:#f1eee7;--muted:#bcb8af;--line:#4c4b46;--accent:#f0bd64;--soft:#2b2d30;--panel:#393a3c;--inverse:#121416}
html[data-theme="dark"][data-palette="vermilion"]{--paper:#251d1a;--ink:#faf0e5;--muted:#cbb7a7;--line:#5d4940;--accent:#ff9a80;--soft:#362923;--panel:#49362d;--inverse:#19120f}
.palette-study{position:sticky;top:0;z-index:8;display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:9px;padding:12px 20px;background:var(--paper);border-bottom:1px solid var(--line);box-shadow:0 2px 0 rgb(0 0 0/.03)}.palette-study>span{font:10px Plex,monospace;margin-right:12px;color:var(--muted)}.palette-study button{display:flex;align-items:center;gap:8px;font:11px DM,sans-serif;padding:9px 12px;border:1px solid var(--line);min-height:38px}.palette-study button[aria-pressed=true]{border-color:var(--accent);box-shadow:inset 0 -2px var(--accent)}.palette-study .swatch{width:12px;height:12px;background:var(--swatch);border-radius:50%;border:1px solid rgb(255 255 255/.35)}.palette-study .palette-mode{margin-left:12px}.notebook .accent,.note-body .mono,.plus{color:var(--bright)}.notebook-intro>p,.notebook-intro>.mono,.notes summary>.mono,.note-body{color:var(--night-muted)}.notes details,.notes details:last-child{border-color:var(--night-line)}.lead-art svg{background:var(--inverse)}
.lead-art [fill="#222722"],.lead-art [fill="#111511"],.lead-art [fill="#20251f"]{fill:var(--inverse)}.lead-art [stroke="#333833"],.lead-art [stroke="#737c70"],.lead-art [stroke="#65765b"]{stroke:var(--night-line)}.lead-art [fill="#ef794f"]{fill:var(--bright)}.lead-art [fill="#c9ccc1"],.lead-art [fill="#d3d7cc"]{fill:var(--night-muted)}.lead-art [fill="#a6af98"]{fill:var(--art-body)}.lead-art [fill="#333d32"]{fill:var(--art-window)}.lead-art [fill="#88977f"]{fill:var(--art-roof)}.lead-art [stroke="#dce1d2"],.lead-art [stroke="#e2e5da"],.lead-art [stroke="#f3eee1"]{stroke:var(--inverse-text)}.lead-art [stroke="#b94d2b"]{stroke:var(--bright)}
html{scroll-padding-top:85px}@media(max-width:720px){.palette-study{gap:6px;padding:9px 12px;justify-content:flex-start}.palette-study>span{width:100%;font-size:9px}.palette-study button{font-size:10px;padding:8px}.palette-study .palette-mode{margin-left:0}.palette-study .swatch{width:9px;height:9px}html{scroll-padding-top:145px}}

/* Approved brand punctuation: lavender, distinct from cobalt interface links. */
:root{--wordmark-accent:#8c63c8}html[data-theme="dark"]{--wordmark-accent:#c3a1ef}.wordmark-dot{color:var(--wordmark-accent)}
html{scroll-padding-top:24px}

/* Lavender identifies field observations and method notes. Cobalt remains for links. */
.notes summary>.mono,.notes .plus{color:#c3a1ef}
.method-note{border-left:3px solid var(--wordmark-accent)}
.appearance-control{display:flex;align-items:center;gap:12px;text-transform:none}.appearance-label{font:10px Plex,monospace;color:var(--muted)}
.theme-button{min-height:44px;padding:10px 14px;border:1px solid var(--line);background:var(--soft);font:12px DM,sans-serif;font-weight:550;white-space:nowrap}.theme-button:hover{border-color:var(--accent)}
@media(max-width:720px){.topline{gap:12px;align-items:center;flex-wrap:wrap}.appearance-control{margin-left:auto;gap:7px}.appearance-label{font-size:9px}.theme-button{font-size:11px;padding:10px 12px}}